North West Pacific deep-sea barnacles (Cirripedia, Thoracica) collected by the TAIWAN expeditions, with descriptions of two new species Author Chan, Benny K. K. Author Prabowo, Romanus Edy Author Lee, Kwen-Shen text Zootaxa 2010 2405 1 47 journal article 10.5281/zenodo.194179 19ddd29f-a941-40dd-95aa-ecafcedba6da 1175-5326 194179 Glyptelasma gigas ( Annandale, 1916 ) Figures 1 A, 3 Poecilasma gigas Annandale, 1916 : 299 , pl. 4 fig. 4, pl. 5 figs 10–14, pl. 6 figs 7, 8. Megalasma ( Glyptelasma ) gigas . — Calman, 1919 : 364 . — Nilsson-Cantell, 1928 : 20 . — Zevina, 1982 : 85 , fig. 75. Glyptelasma gigas . — Broch, 1931 : 32 , fig. 12. Material examined. NMNS 005087-00078, 8 specimens , Stn. CP132 ( 22°20.98’N , 120°6.73’E , 21 Nov. 2001 , depth: 690–700 m ), CL 7.67–15.41 mm , CW 4.46–9.28 mm , PL 3.72–9.79 mm . Diagnosis. Largest known species of Glyptelasma ; peduncle long; carinal base laterally expanded; scutum with basal and occludent margins forming right angle. Description. Capitulum large, 5 smooth, white, opaque plates, separated by narrow, chitinous inter-spaces ( Fig. 1 A); tergum quadrangular, all margins straight; scutum ovoid, occludent margin convex, basal and tergal margins straight, carinal margin strongly convex, basal and occludent margins forming right angle ( Fig. 1 A); carina bowed, basal laterally expanded ( Fig. 1 A). Peduncle long, yellow, surface concentrically wrinkled ( Fig. 1 A). Maxilla bilobed, setae in 2 main clusters ( Fig. 3 A); maxillule notched, 2 large, long, cuspidate setae above notch, short spines in notch, 10 cuspidate setae below notch, region below notch expanded outwards ( Fig. 3 B); mandible with 6 teeth excluding inferior angle, first tooth separated from remaining teeth, lower margin very short, smooth, inferior angle terminating in 1 sharp seta ( Fig. 3 C); mandibular palp narrow, elongated, setae on superior margin ( Fig. 3 D); labrum concave, without deep notch, cutting edge with dense, fine teeth ( Fig. 3 E, I). Cirrus I with rami subequal; outer ramus 10-segmented, inner ramus 8-segmented ( Fig. 3 F); cirrus II with outer ramus 14-segmented, inner ramus 15-segmented ( Fig. 3 G); caudal appendage short, 1-segmented, length <height of basal segment of pedicle of cirrus VI ( Fig. 3 H). Distribution. Malaysia , South China Sea, Taiwan . Remarks. This is a new record for Taiwanese waters.